package netty.echo;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

@Sharable
public class EchoServerHandler extends ChannelInboundHandlerAdapter {
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf byteBuf = (ByteBuf)msg;
        System.out.println("server read：" + byteBuf.toString(CharsetUtil.UTF_8));
        byteBuf.resetReaderIndex();
        ctx.write(msg);
        ctx.fireChannelRead(msg);
    }

    @Override
	public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
		System.out.println("server read complete");
//		ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
//		ctx.flush();
	}
	@Override
	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
		cause.printStackTrace();
		ctx.close();
	}
}

